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Old 10-24-2008, 05:55 AM
Peasant
 
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Location: connecticut
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Default Aluminum foil

I was told to use aluminum foil for covering gaps between bricks!
Any input is greatly appreciated!
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  #2  
Old 10-24-2008, 07:43 AM
dmun's Avatar
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Default Re: Aluminum foil

Aluminum foil and mortar is not a good mix, the mortar will rot out the foil, so any supposed advantages, like heat reflection or vapor barrier, won't materialize.

I used a sheet of foil between my inner and decorative outer arch as a slip plane. It didn't matter if it rotted out, because I only wanted the oven not to be adhered to the masonry exterior.
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Old 10-24-2008, 08:42 AM
Peasant
 
Join Date: Aug 2008
Location: connecticut
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Default Re: Aluminum foil

What about using the foil after the mortar has dryed and cured?
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Old 11-21-2008, 11:46 AM
Serf
 
Join Date: Nov 2008
Location: Kingwood tx
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Default Re: Aluminum foil

reflective barriers only work well when there is an airspace on the hot side of the reflective barrier. If they are in contact with the hot mass they conduct the heat and radiate it more quickly away from the oven.
DG
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